A water level gradient method for the rapid tuning of the stage-to-discharge relationship in a mild-slope river
Petrovic, D.; Le, H.M.; De Ville, N.; Cornet, E.; Verbanck, M.A. (2013). A water level gradient method for the rapid tuning of the stage-to-discharge relationship in a mild-slope river. Houille blanche 6(6): 42-47. http://dx.doi.org/10.1051/lhb/2013049
In: La Houille Blanche. Société Hydrotechnique de France: Grenoble. ISSN 0018-6368; e-ISSN 1958-5551, more
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| Keywords |
Discharge measurement
Flow resistance
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| Author keywords |
Water level gradient method; Velocity modeling; Hysteresis |
| Authors | | Top |
- Petrovic, D.
- Le, H.M.
- De Ville, N.
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| Abstract |
The water level gradient method as an alternative for obtaining the depth-discharge rating curve is suggested. We explicitly compute a stream velocity using basically a prediction of channel flow resistance. We claim that this synthetic stream velocity is relatively easy to obtain at costs more affordable in comparison to continuous velocity measurements which would be obtained by H-ADCP or non-contact (radar) technology. The method also should normally allow obtaining a valid depth-to-discharge relationship in a much shorter period than what the conventional field gauging interventions are able to achieve. The water-level gradient method is able to explicitly provide a distinction between the rising stage and the falling stage during a storm, suggesting that the information provided by this new method is richer than what is usually made available. |
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